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Finding the Fourth Proportional to 266,922,593.60, 399,880,005.60 and 137,088,276.80

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Solution

The fourth proportional to 266,922,593.60, 399,880,005.60 and 137,088,276.80 is: 205,373,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,922,593.60 : 399,880,005.60 = 137,088,276.80 : x
  2. Step 2: Convert to fraction form
    266,922,593.60/399,880,005.60 = 137,088,276.80/x
  3. Step 3: Cross multiply
    266,922,593.60x = 399,880,005.60 × 137,088,276.80
  4. Step 4: Simplify right side
    266,922,593.60x = 54,818,860,894,478,360
  5. Step 5: Solve for x
    x = 54,818,860,894,478,360/266,922,593.60
  6. Step 6: Final answer
    x = 205,373,625.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.